Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Ferroelectric Films: Cheaper, Smaller and Less Energy Requiring Components for Laptops and Mobile Phones

19.12.2005


Chalmers University of Technology in Gothenburg, Sweden, has together with five European partners started a three year project, Nanostar, for mastering of nanostructured multifunctional ferroelectric films for low cost mass production of microwave devices.



The project costs are 4.1 million Euros of which 2.8 million is supported by the European Commision in the 6th framework programme while the rest is paid for by the partners. Coordinator of the project is Professor Spartak Gevorgian at Chalmers Department of Microtechnology and Nanoscience, MC2.

The main focus will be on the development of theory, fabrication processes and device demonstrators for functional validation of nanostructured multifunctional ferroelectric films and components applicable in microwave communication.


Ferroelectrics considered in the project are complex metal oxide dielectrics and barium and strontium titanat, characterized by high dielectric permittivity.

The dielectric permittivity of these materials is electric field dependent, allowing development of voltage controlled capacitors (varactors) and a large number of tuneable microwave components for microwave applications.

Professor Spartak Gevorgian: "The devices based on these films offer a substantial reduction of cost, sizes and power consumption, i.e. features useful for power hungry microwave systems, especially in portable/handheld devices such as mobile phones, laptops etc. They can also be applied in adaptable/reconfigurable microwave systems consisting of a large number of tuneable components, such as large phased array antennas and tuneable metamaterials.

The innovations also include nanostructured ferroelectric films with engineered, radically new dielectric properties, and exploitation of new physical effects in nanostructured ferroelectrics for applications in devices with new functions. Further improvement of properties of ferroelectric films and devices in terms of reduction of the temperature dependence, dielectric hysteresis, losses, noise and parameter drift along with increased long term stability and tuneability are included in the project.

"Demonstrators will be developed for microwave communications applications, but they will also be potentially useful for optoelectronics and sensor applications. Tuneable TFBARs, which have no analogues in the electronics industry, are one of the typical new devices with new functions to be considered", says Spartak Gevorgian.

The partners in the project are: Chalmers University of Technology, Gothenburg, Sweden; Philips Electronics Nederland B.V, Eindhoven, The Netherlands; Ericsson AB, Mölndal, Sweden; Temex Filters (SAW) Business Unit of Temex; Sophia Antipolis, France; Swiss Federal Institute of Technology, Lausanne, Switzerland; and Electrotechnical University, St. Petersburg, Russia.

Jorun Fahle | alfa
Further information:
http://www.nanostar-eu.com

More articles from Information Technology:

nachricht Information integration and artificial intelligence for better diagnosis and therapy decisions
24.05.2017 | Fraunhofer MEVIS - Institut für Bildgestützte Medizin

nachricht World's thinnest hologram paves path to new 3-D world
18.05.2017 | RMIT University

All articles from Information Technology >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: A quantum walk of photons

Physicists from the University of Würzburg are capable of generating identical looking single light particles at the push of a button. Two new studies now demonstrate the potential this method holds.

The quantum computer has fuelled the imagination of scientists for decades: It is based on fundamentally different phenomena than a conventional computer....

Im Focus: Turmoil in sluggish electrons’ existence

An international team of physicists has monitored the scattering behaviour of electrons in a non-conducting material in real-time. Their insights could be beneficial for radiotherapy.

We can refer to electrons in non-conducting materials as ‘sluggish’. Typically, they remain fixed in a location, deep inside an atomic composite. It is hence...

Im Focus: Wafer-thin Magnetic Materials Developed for Future Quantum Technologies

Two-dimensional magnetic structures are regarded as a promising material for new types of data storage, since the magnetic properties of individual molecular building blocks can be investigated and modified. For the first time, researchers have now produced a wafer-thin ferrimagnet, in which molecules with different magnetic centers arrange themselves on a gold surface to form a checkerboard pattern. Scientists at the Swiss Nanoscience Institute at the University of Basel and the Paul Scherrer Institute published their findings in the journal Nature Communications.

Ferrimagnets are composed of two centers which are magnetized at different strengths and point in opposing directions. Two-dimensional, quasi-flat ferrimagnets...

Im Focus: World's thinnest hologram paves path to new 3-D world

Nano-hologram paves way for integration of 3-D holography into everyday electronics

An Australian-Chinese research team has created the world's thinnest hologram, paving the way towards the integration of 3D holography into everyday...

Im Focus: Using graphene to create quantum bits

In the race to produce a quantum computer, a number of projects are seeking a way to create quantum bits -- or qubits -- that are stable, meaning they are not much affected by changes in their environment. This normally needs highly nonlinear non-dissipative elements capable of functioning at very low temperatures.

In pursuit of this goal, researchers at EPFL's Laboratory of Photonics and Quantum Measurements LPQM (STI/SB), have investigated a nonlinear graphene-based...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Marine Conservation: IASS Contributes to UN Ocean Conference in New York on 5-9 June

24.05.2017 | Event News

AWK Aachen Machine Tool Colloquium 2017: Internet of Production for Agile Enterprises

23.05.2017 | Event News

Dortmund MST Conference presents Individualized Healthcare Solutions with micro and nanotechnology

22.05.2017 | Event News

 
Latest News

Physicists discover mechanism behind granular capillary effect

24.05.2017 | Physics and Astronomy

Measured for the first time: Direction of light waves changed by quantum effect

24.05.2017 | Physics and Astronomy

Marine Conservation: IASS Contributes to UN Ocean Conference in New York on 5-9 June

24.05.2017 | Event News

VideoLinks
B2B-VideoLinks
More VideoLinks >>>